What is the meaning of scintillate?

verb

• Give off.
  • usage: "the substance scintillated sparks and flashes"
• Reflect brightly.
  • usage: "Unquarried marble sparkled on the hillside"
  • synonyms: sparkle, coruscate
• Emit or reflect light in a flickering manner.
  • usage: "Does a constellation twinkle more brightly than a single star"
  • synonyms: twinkle, winkle
• Physics: fluoresce momentarily when struck by a charged particle or high-energy photon.
  • usage: "the phosphor fluoresced"
• Be lively or brilliant or exhibit virtuosity.
  • usage: "The musical performance sparkled"; "A scintillating conversation"; "his playing coruscated throughout the concert hall"
  • synonyms: sparkle, coruscate